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We study the nuclear Schiff moments of $^{129}$Xe and $^{199}$Hg induced bythe nucleon electric dipole moment using large-scale shell model calculations.For $^{129}$Xe, we find a linear relation between the leading-ordercontribution and magnetic moment, which would be useful in reducing thetheoretical uncertainty. The conventional model space does not contain the $0g_{ 9/2 } $ and $ 0h_{ 9/2 } $ orbitals, which are connected to the spin-orbitpartners by large matrix elements. Thus, to evaluate the influence of therelevant single-particle orbitals outside the conventional model space, weapply the quasiparticle vacua shell model method. Moreover, thenext-to-leading-order contribution arises from parity and time-reversalviolation inside the nucleus. We demonstrate that these secondary effects donot induce any significant disturbance to the correlation. Additionally, wereport the shell model results for the nuclear Schiff moment coefficients of$^{199}$Hg. Compared to previous studies, the results obtained in this studyare rather large, indicating a higher sensitivity to the neutron electricdipole moment.

Constraints on the nuclear Schiff moment from its correlation with electromagnetic properties